Spotting/period?

BRi

I’ve recently taken a plan b and got back on birth control. I took a pregnancy test since I had unprotected sex the day before I went to the doctors. The test was negative thank god. I haven’t been on birth control in 6 months. My period was also late 10 days when I checked waiting at the doctors. The day after I got birth control I started having bright orange discharge with what looked like a tad bit of blood and it freaked me out. 3 days after I started spotting and it had clots of blood. I have bad cramps too. At times I get bloated to where it’s a bit painful. The bleeding is getting a little heavier and it hurts down there. Should I be worried?